body {
    background: #f4f6fa;
    font-family: 'Segoe UI', 'Arial', sans-serif;
}
.dashboard-container {
    display: flex;
    min-height: 100vh;
    max-width: 100vw;
    overflow-x: hidden;
}
.sidebar {
    width: 220px;
    min-width: 220px;
    background: #232e3c;
    color: #fff;
    padding: 30px 0;
    box-shadow: 2px 0 8px rgba(0,0,0,0.05);
    flex-shrink: 0;
}
.sidebar h2 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}
.sidebar ul {
    list-style: none;
    padding: 0;
}
.sidebar ul li {
    margin: 20px 0;
}
.sidebar ul li a {
    color: #fff;
    text-decoration: none;
    padding: 10px 30px;
    display: block;
    border-radius: 6px;
    transition: background 0.2s;
}
.sidebar ul li a:hover, .sidebar ul li.active a {
    background: #1a2230;
}
.main-content {
    flex: 1;
    padding: 40px;
    background: #fff;
    box-shadow: 0 0 8px rgba(0,0,0,0.04);
    min-width: 0;
    overflow-x: auto;
}
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}
.header .logout {
    background: #e74c3c;
    color: #fff;
    border: none;
    padding: 8px 18px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s;
}
.header .logout:hover {
    background: #c0392b;
}
